Terephthalic acid is a significant chemical used in the manufacture of polyesters and plasticizers. It contains only C, H, and O. Combustion of 15.85 mg terephthalic acid produces 33.58 mg CO2and 5.16 mg H2O. If 0.250mol of terephthalic acid has a mass of 41.5 g, determine the molecular formula of terephthalic acid.